Lock



1. M. TAYLOR,

LOCK.

APPUCATION FILED MAR. 12, I920- 1,350,39 2. Pa en ed Aug- 24, 1920.

2 SHEETS-SHEET 1.

. N WITNESS.- [Q N INVENTOR. I m E E J.M.7"/WLOR BY I I ATTORNEY.

, J. M. TAYLOR.

LOCK.

APPLICATION FILED MAR.12, 1920.

Patented Aug. 24, 1920.

2 SHEETS-SHEET 2.

m NM NM v WM Mwm MW. AHMW Q. Q

J. 3% BJ. W MN m whfi QM MN WITNESS:

i To all whom it may concern: a I

.w N T D ;STA ES" P'A ENTI-fQ revpon, or nnntoir," MICHIG N;

, g r a, i

- Be'it known that I, JAMES, Ma'TAiibiga citizen of the United States,residin at Detroit, 1n the county of-WVayne and-tate-Of lxlichigan, haveinvented certain neW, and useful Improvements inLocksgrand I; do

hereby declare the following ,to be: afull, clear, and exact description:of the ;1;nventio1i,fsuch as will enable othersilskilledcin the art towhich it appertainszto make and use the same. 7

' I A- further object This.v invention relates "to locks, 'and'aims toprovide a lock of novel'rand'slmproved construction, and. usingaxscreivgthreaded' key for; releasing "the shackle or] similar member;

is the provision ofa lock mechanism which can: be contalned within apossibility ;of ethe -lock 1 being ---;'picked or opened Withouttheaidof the required key. I

Another object is the provision .{fin the lockof a guard'ror, barrier'awhich. prevents the operation of the 'lock for opening it, until suchguard 0r ,barrier.is actuate'dby the key. V

.A still further, pi'ovision 'of such a lock embodyingtwogcorrelatedmove able parts, one, to engage the shackle or similarmember, andtheother normallyoperable to prevent the first named ,Inemher fromlbeingmoved to. releasing position, such members being controlled-by akey-having separate threaded or. equivalent portions for first, movingthe second namedhmember inorder-that the firstnamed member can then bemoved to releasing position. k Another object isithelj arovisiongofanovel key for operating the lock, embodying; in

'dependentlyroperable members, one-for pre+ paring the lock so that theother manipulated to open the lock;

can be With the foregoing and other objects in view, which will beapparentlas the descripr Y Y tion proceeds, the 'iinvention-resides inthe construction and arrangement" of parts here inafter described: andclaimed,;it being-{un derstood' that changes can be "made within thescope of 'jwhat is claimed'without de parting from thespirit ofthe-invention.

The invention is illustrated'in. the accompanying drawings, whereinFigure 1- sea -longitudinal[ median of the lock shown in the formiofiaipadlofck,"

' 1 Wi hin the collar};2 while-thewquter en Specification of LettersPatent,

' VF; Fig; 1.

. :Fig. 3 is section on the same line as a r P tente n s 19.20. V P IApplication flledmuc 12, 1920; Serial m; 3 l I I 2 is section 'on theline, of r ,Fig.;,4 is anlend' View, with-the near end plate :ofthecaseremoved;

Fig.;5 is a: side ,elevation ot ition,-portions being broken away andshown f in section.1

, In. the embodimentjof as i 2 shown in. F igsl 1,,2,-3:.'and ,4, the.improve-1 -ments are: incorporated. in a; padlock, a1

though they can be used in other types: of V locks, The lockembodiesa;cylindrical banrel or case? havingzth'e. endiplates 8 and-"19"securedetoithe endsflthereof; bymeans of screWslO or. the like. :Theshackle 11- of the padlock has-onezgend pivoted,- asat 12, to the endplate 9, and '13) ismovablethrough. an openingl4 in the case '7 near'the opposite end. ,Thewfree terminal or 5end',-portion:;ll3 ofthe-shackle has a n0tch, 15 jand qa lug? l6 ,-said .formed with' a camface :17 .2 c

tndinal ribs 19 onits periphery at. one end 76 its other end portion soit lug being" r a i A detent 1ev is I slidable; iagatdainy slidablewithin,longitudinal grooves 20in a the interior suriace oflcasewherebyto precase. This detent has means for the engagement of the freeterminal 13 I of. the shackle,

a slot 22 extending radially from the recess has a-shoulderf23 and a,coiled expansion spring' '24 surrounding the detent is, confined betweenEsaid shoulder and u an inner annular collar 25'With Whichthec'ase 7 isprovidedbetween the endsthteoffthereby i I moving said. dtent toward theendplate118 so as to remain in engagement, with the shackle; When'(thefportion or terminal 1'3 vent said idetentfrom rotating within theofJthe shackle isfmovedthrough the open inwardlyagainst the tension mentwith the notch, 15 and? lug 1-6., The inner end ;p ortion:;o'f. I theadetent is ,slida-ble 'ing 14, thecamfacezlfi 'will forcethedetentfr; fi

I p of the spring 24, causingsaidydetent to {snap into enga ge-f p 90and for this purpose, the, outer end, of the detent has a recess 21;centrally thereof, and i has afinger piece 29, for turning said stem,

;wherebyathe=tip 27 :in screwing into thehole 26 :will enable. thedetent to *be retracted i to so --1 I L The flock-ii's "provided "with a'proteetiv'e ing, the shackle.

larged portion, which is provided with the ribs 19, isslidableiwithinythe case. .The

threaded hole 26 for the engagement ofth'e' key used in retracting thedetent' ior releas j The key has a *icmiei" stem 28 provided 1 with ascrew threadedtip127- toengvage within the threadedhole or portion 26 ofthe detent, and (the sopposite-en'd of the stem 28 releasing position.Said :part of theikeyds for the purposei of opening the ilockiby "movingthe e detentito'releasingposition,- andthe key has anotherpart'forlfirstipreparing the lock. isoizthati the detent 28 5 can beoperated for ithe intended purpose. Thisisecond part of the lockincludes a tubular stern 39:mount- 'ed for:rotationrandgliding movementon the steml2'8,e and screw ithreaded" on the exterior that send z-ofthe stem 1 39 nearest the l'finger piece; 29 also Lhaving asuitableffinger; pieee 42:with- 'aEshOuIder-AI to beari against orzabu't "@lIBlBIlCl platet), v '1?he threaded tip- 27 of the 5 terthelhole26riwithlthe'finger piece 29 bearing :fagainst the 'ifingerpiece 42, Les 1- s'een in guard'orbarriertoprevent the stem 28 beingmoved into engagement-with th'e detent "unless the guard or barrierislfirst} opened or released, thereby preventing a s i'rigle thread- 1ed istem or similar implement from"be1ng used ifor 4 opening i the lock1 or :picking same.

i1 il hislguard orfbarrier comprises deaf springs 31 (two being "used(as shown which are fitted in' long'itudinal grooves 81 in' the detent118' 'under or "within the 'spring 2e, which' 7 serves to retain saidleaf springs in place.

' The leaf spr ings havetteri'ni-n'als 32 proj ectz apart,-

see

mg; ."fro'rn-ithe rear or inner mound-ed *end' 'dfi 1 the det'ent, 'andforming the r guard or ban terminalffingers 32 have a t'end'enoy tospring n in Fig. *3, 'and can be 'sprung toward one anothenis'o as to"close *the guard' or barrier in front (if the-"threaded hole' or inga"'key or -implenient from entering the threaded ho'le 26 of tl 1'edetent.

s similarly prevented from turning in the. case,':-saidslide331hawinglongitudinal ribs A eyli-ndr'icalslide or-member es 'is mdv fable with nthe i ease at-that;- end op'po siteto :t-he ieiid 'inWwhieh ;'the detentis movable, and

34 {on its periphery working vvithin longitudirial? grooves 35' 'in thecase. The: slide 33 is moved inwardly toward {the detent 3 bymeansmjcoiled. expansion spring '36 confined b'etw'een the?Outerendofsaidslideiand theend plate 9, and the inner endofthe's'lide hasacconcaved cam recess 37' which, in enin possibl move said slide against-the collar or abutment 25, thereby forcing I the barrier. The slide hasa screw threaded bore or hole 38 for the engagement of the*threadedisleeve'l39 lot :;the key, and the end plate 9 V has an*opening .or aperture lO for -:the slid in pa'ssageiof:said-:tibular'sleeve 39.

1 heneth'eikey'1sremoved,;soaas*tonrelease v the :detentand slide or:member 133, the declose athe; guard .or :barrier sand the can besnappedintoengagementwiththe detent when iforeed into :the 1ease,'r.theslide 33, movingwithwthe detent =whenthecam 17 forces the detentxawayzfro'm :thetendpl'ate 8 v members 32' toward and against-oneanotherinfront of 1thethreaded hole 26 to closethe guard or 7 .gagingtheguard members or fingers 32, will bringthem towardione another intocontact,

asse'en in Fig. 2. "When the slide 33Vis re- ;leased, the expansion ofthe spring'36 will after-which theipartsireturn th'erebyilockingthe-shackle within the case. The pressure-20f the'i slide "33 r-agains'tthe guard members '32 willzh'old therniolosedg therebya'preventingitheleck being-openetl without: themequired key, inasmuch asgthe detent caninot he engaged m ngfi w releasingiposition, ias' long e gua d isblosed.

owever, *with athe provisionsof 'a key as shownjiin Fig; 3, -thelookroan be "readilyiopened. "Dhisis doneiby first slid'ing itheitubular stem ithrou'gh the aperture 140; the istemr128'zmoving with:it*:into

the bore 38, andthesleeve'39 isthenrdtated so a'svt'o screwnritoithebore 38 and when the shoulder =41 :abuts *the 'endiplate'i 9, ithe slide33 will :then be moved outwardly flfrom' nthe center? oil the @asmaifist the itension' of ithe spring-36ers seen-"in FigJiB, removing saidslide from theiig'uard f members 32 which 1 will 7 now; spring r op'enaway fromlone another;

screw the tip the =detent from the shackle, so that the 28 can? now be"slid "inwardly -to 27 ithereof ihto the "detent, and

' when the :finger :piece 29 abuts against" the finger piece 42,thescrew I action will retraet shackle' ican be swung open. The key canthen beiremoved by"first unscrewing? the 'stem 28 and 'then' unscrewingand withdrawing the sleeve 39, whieh will rele'as e' th'e detestandislid'e 33 -in turnfso'ithat' they will re- VY-it bathe"arrangementas above "described,

the iloek Hrequires a special key having -two 1 be provided "byfusingscrew threads of di f ferent pitches fa d changing the proportions ofthe parts as will be readily understood by those skilledin the art:By'theiprovision ofqthe gt ard or igbarrier, "it is pmetimthelo'ckwithout the' T aid of a properf key; and 'the -floekhasbiit fewworking ,parts,so that,i t is (simple in constructionand operation. g g,3,

Thelimprovements can be used in other styles of locks, as suggested inFig; 5, wherein;- a member 11 has a terminal 13" to enter the case for;the engagement-of the ,detent,

illustrating how the locklmechanism can be used for holding othermembers besides the shackleoi' a pad lock; 1

is claimed as new is l 1. A look comprising in combination, a-

open the guard and the'other member hav-l ing means for moving thedetent when the guard is opened. I

3. A look comprising in combination," a detent, a spring guard, alspring-pressed member movable to bring said guard to protectivep'ositiomand a key having relatively movable members, one of. whichisengage able with said spring-pressed member to move it for opening theguard and the other: member having means for moving the de-Z tent, saiddetent and members being mov able longitudinally.

4-. A lock comprising a detent=having means at one end for theengagement of a key, spring guard members atsuch' end of the detent, anda spring pressed member movable toward said detent and having a cam formoving said guard members toward one another, ,to preventuthe key yengaging 1, said detei1tsa1dmember having a hole for) the passage ofthekey and for retracting said member by the key.

5. A look comprising in combination, a detent, a member having athreaded bore, a guard controlled by said member, and a key havingrelatively movable threaded members, one to engage in the/bore of said"member for'controlling the guard, and the other to threadedly. engagethe detent forinov-f' ing it. I V v a 6. A look compr sing inCOHIbIIIatlOII, a

detent having a threaded hole, a spring guard for said hole, a springactuated memher for moving said spring guard to pro= tective position in'front of said hole, and a H key having relatively movable screwthreaded stems, said spring-actuated member hav-.

ing a threaded bore for the engagement of Having thus described theinvention, what a .onefstem, for 1 moving. said; Zmember to; open theguard and the other stem being engage able with the detent inflsaid;holethereoi for moving-tho same.

:7. A look comprising a detent having-a threaded ;hole at oneend for theengagement of a key, spring guardmembers iat-saidfend ofv the detent, a-.member having cam for movinglsaid guard'pmembers toward one i anotherto. preventthekeyfentering said, hole, said member havinga: threadei'lbore for; the passage; and engagement-oftheikey, 1

r and spring means: for moving said member toward the detent to movesaid h r towardeone another. 1,-

8Q lock comprising a case havingian apertureat one en'd,,.adetent,slidable{withspring 'means for moving said detent away guard'meminthe-case near the opposite end, said detent f having .a threadedhole at that endtnearest sald aperture; for the e engagement of-a .key,

from said aperture, a member slidable within the case between saidaperture and detent, spring guard members within the case, p

pro ect1ng between said detent and member, f

said member having'a cam for'moving said guard members toward oneanother to pre vent the: key entering said threaded hole,

s'aidmember having a threaded bore for the engagement and passage of thekey, and

7 spring means formoving'said member away f m sa d aperture. 7 7 Y Y a9. Af'lock including.in 'combination, two

threaded stems for moving saidmembersc relatively movable screw threadedmembers, jone controlling theg'other, andf'a key havQ ing a pair ofindependently operable screw 10.,A lock comprising in combination, a

screw threads, a key having screw-threaded stems mounted one on theother toengage moved-by the other stem.

11. A lock eomprising{in combination,"

- pair of relatively-movable members having i the respective members,and means prevents mg one stem from engagingthe correspond- 111g memberuntil "thei'other "member 1s: f

two relatively movable members; having screw threads, a'key having athreaded stem to engage oneofsaid members and a tubular threaded stem.rotatable and slidable on the firstnamed' stem to engage the othermember, and means operated by one of said membersfforpreventing the'othermember being engaged by the corresponding stem until the otherstem hasmoved the corresp'ondingmember, I w j e 7 12. A lockcomprising-in comb ination,a detent, a slidable member, said detent andmember each having screw threads, "a key having a stem with screwthreads and -a tubular stem slidable'and rotatable on said a n 5. stemand screw threaded, the rfirstand'sec- 0nd named stems being engageablewith the "detent and member respectively, andmeans pre venting thekfirstnamd stem from nga 'ingthe detent until said member is 'retracted 13.A-1ockc0mp1 1sing co mbin atibmn ,cmsethavin'g ansapentureat dne end;afdetent slidable -in the ca e having a threa,ded*hle,

' spring 2 means for 5 moving said 'd'ete'nt' away froin said aprture, 1spring guard; a mem- 7 *a'ber lidable inihwcasebtWenSaid aperlofitureanddqtent'fizind movable-toward said fi'detent xforc moving said guard :infront of said :hole'; said. imember dmving gthreaded j bore, spring jm'eans for moving s aid' mem- 7 4 a 'stem'with'a threadejd end-tojengagein -said"1 h0ie, and Na stub-um threaded Stem slidable and nflatable on;the first, named st'emt kpags :thmugh said aperture and engage Bin saidbore lfor "retmcting said 7 f imembr andreleaesing saidu unrd,'

14. A; key emb'odyingn *smm I tubur lar. stem thereon,- eah at thes'telns' having a finger piecg; and screw threads for operating 15.'fl-keytaomprising mstmanda tubul ai' 26 itwo Subscribing witnesses.

